Electric connector and electric connector combinationTechnical field
The present invention relates to a kind of electric connector, in particular to a kind of electric connector and electric connector combination.
Background technique
The electric connector combination that a kind of existing two electric connectors with same structure are mutually connected with group, for example, United States Patent (USP)Person disclosed by No. US6851954 (corresponding Chinese patent CN03133150.5) and U.S. Patent No. US5098311 are taken offDew person.
Wherein, the terminal of the electric connector of U.S. Patent No. US6851954 exposure is single-cantilever beam type, when two electrical connectionsIt when device docks, docks and only provides a contact point between terminal, since there are many numbers of terminals on this type electric connector, be easy to produceRaw certain undesirable chances of termination contact, cause the failure of connection signal.
And the terminal of the electric connector of U.S. Patent No. US5098311 exposure is also single-cantilever beam type, when two electrical connectionsWhen device docks, although there are two contact points between docking terminal, two contact points are all on hanging elastic arm.Due to rightThere are some differences in addition to may cause size and shape in forming process for the two-terminal connect, and the position for being installed on insulation shell can alsoDeviation can be generated, therefore the elastic force for the two-terminal docked might have difference, when the positive contact force of one of contact point is bigWhen the positive contact force of another contact point, the difference of positive contact force may be such that weak contact point separates, orIt separates that weak contact point at some extraneous factors (such as vibration, temperature etc.) or intermittently, signal is caused to passThe unstable disturbing factor passed.
Summary of the invention
Therefore, one of purpose of the invention is that providing a kind of can stablize with the terminal of butt-jointed electric connector connectThe electric connector of touching.
Therefore, another object of the present invention is to provide a kind of terminal energy of the electric connector of two same structuresStablize the electric connector combination of docking.
Then, electric connector of the present invention includes an insulation shell and multiple terminals in some embodiments.Insulation shell toolThere are a wall body and multiple terminal grooves for being formed in the wall body, each terminal groove has a first end and one second in an abutting directionEnd, and one first recessed portion, the adjacent second end of an adjacent first end are formed in the wall surface for defining the terminal grooveThe second recessed portion and a support convex between first recessed portion and second recessed portion.Multiple terminals pointNot She Yu multiple terminal grooves, each terminal have a fixed part, an elastic arm and a tail portion, the elastic arm have is consolidated by thisDetermine portion to bend the bending part extended, the connection bending part and cross the butting section of the support convex, the connection butting sectionAnd the contact for being connected to the springing part end toward the springing part of second extreme direction extension and one and being protruded towards adjacent docking groovePortion, and the springing part and the contact portion can be towards the second recessed portion resilient movements.
In some embodiments, the bending part of each terminal forms two inflection points.
In some embodiments, the fixed part of each terminal is by being butted on corresponding first recessed portion.
In some embodiments, the elastic arm of each terminal is crossed after the support convex again micro- towards deviateing second recessPortion direction deviation simultaneously extends toward second extreme direction.
In some embodiments, the tail portion of each terminal is bent by the fixed part right angle and is extended, and has a setting welderingThe welding surface of ball.
In some embodiments, each wall surface for defining the terminal groove be also formed with one from first recessed portion toward shouldInclined-plane made of first end gradually inside contracts, to assist soldered ball to position.
Then, electric connector combination of the present invention is comprising two same structures and to mutual in some embodimentsThe electric connector that group connects, each electric connector include an insulation shell and multiple terminals.The insulation shell has multiple arranged in parallelElongated wall body, multiple docking grooves and multiple terminal grooves for being formed in multiple wall bodies between multiple wall bodies, oftenOne terminal groove has a first end and a second end in an abutting direction, and is formed with a phase in the wall surface for defining the terminal grooveOne first recessed portion of the adjacent first end, the second recessed portion of an adjacent second end and one are between first recessed portion and are somebody's turn to doSupport convex between second recessed portion.Multiple terminals are respectively arranged on multiple terminal grooves, and each terminal has one to consolidateDetermine portion, an elastic arm and a tail portion, the elastic arm and the tail portion are connected to the fixed part both ends in the abutting direction, this is solidDetermine the first recessed portion that portion is located at corresponding end pilot trench, the tail portion is close to the first end of corresponding end pilot trench, and the elastic arm is with by thisA bending part that fixed part bending extends, the connection bending part and cross the butting section of the support convex, a connection should be againstPortion is simultaneously connected to the springing part end toward the springing part of second extreme direction extension and one and connecing towards what adjacent docking groove protrudedContact portion, and the springing part and the contact portion can be towards the second recessed portion resilient movements.Two electric connector is mutually with wall body and rightAccess slot is with respect to grafting, and the contact portion of the one-to-one two-terminal for being in contact, and being connected to each other of terminal of two electric connector supports respectivelyAt the elastic arm adjacent bend portion of interfaced terminal.
In some embodiments, the bending part of each terminal forms two inflection points.
In some embodiments, the fixed part of each terminal is by being butted on corresponding first recessed portion.
In some embodiments, the elastic arm of each terminal is crossed after the support convex again micro- towards deviateing second recessPortion direction deviation simultaneously extends toward second extreme direction.
In some embodiments, the wall body of the insulation shell of each electric connector between every two-phase adjacency pair access slot is formedIt is respectively communicated with two rows of terminal grooves of two docking groove.
In some embodiments, the tail portion of each terminal is bent by the fixed part right angle and is extended, and has a setting welderingThe welding surface of ball.
In some embodiments, each wall surface for defining the terminal groove be also formed with one from first recessed portion toward shouldInclined-plane made of first end gradually inside contracts, to assist soldered ball to position.
In some embodiments, the insulation shell of each electric connector also has the parallel multiple wall bodies and is located at moreThe contraposition wall of the side of a wall body also forms a docking groove, and the contraposition wall between the contraposition wall and the adjacent wall bodyWith the locating slot that multiple spaced apart and each comfortable abutting direction extends, and farthest away from the outside of the wall body of the contraposition wallForm multiple positioning ribs for respectively corresponding multiple locating slots, with when two electric connector is mutually connected with group by mutual fixedPosition slot position opposite with positioning rib.
The present invention at least has effects that following: having bending part by the elastic arm of each terminal, can not only provide elasticityThe higher elasticity of arm increases durability, the deformation not easy to fatigue when long-time is in the deformation state after contact, and can be in elasticityArm stress and dispersive stress when elastic displacement, and when elastic arm is close to corresponding second recessed portion elastic displacement, close to bendingIt is resisted against in support convex at portion, the reliable and stable positive contact force being capable of providing between the terminal of docking.Furthermore two are electrically connectedWhen connecing device docking, it is connected to each other two-terminal and forms two contact points, and two positions that are in contact both correspond to each elastic arm against branchIt supports at protrusion, and contact positive force reliable and stable between the terminal of docking can be provided, thereby ensure that docking terminal is able to maintain thatSteadily it is electrically connected.
Detailed description of the invention
Other features of the invention and effect will be clearly presented in the embodiment referring to attached drawing, in which:
Fig. 1 is a stereogram exploded view of an embodiment of electric connector combination of the present invention；
Fig. 2 is a side view exploded view of the embodiment, illustrates the opposite joining relation of two electric connectors；
Fig. 3 is a perspective view of the embodiment, illustrates a wherein electric connector；
Fig. 4 is an incomplete perspective view of the embodiment, illustrates the assembled relation of terminal and insulation shell；
Fig. 5 is an incomplete stereogram exploded view of the embodiment, illustrates the terminal groove of terminal and insulation shell；
Fig. 6 is the side view diagram of the terminal of the embodiment；
Fig. 7 is an incomplete cross-sectional view of the embodiment, illustrates the assembled relation of terminal and insulation shell；
Fig. 8 is an incomplete perspective view of the embodiment, illustrates the arrangement mode of terminal；
Fig. 9 is a perspective view of the embodiment；
Figure 10 is the regional area enlarged drawing of Fig. 9；
Figure 11 is a perspective view of the embodiment, illustrates the mated condition of two electric connectors；
Figure 12 is an incomplete cross-sectional view of the embodiment, illustrates the opposite joining relation of the terminal of two electric connectors；And
Figure 13 is a view for being similar to Fig. 7, illustrates another form of implementation of the terminal of the embodiment.
Wherein, the reference numerals are as follows:
100 electric connectors
1 insulation shell
11 wall bodies
111 positioning ribs
12 docking grooves
13 terminal grooves
131 first ends
132 second ends
133 first recessed portions
134 second recessed portions
135 support convex
136 interference groove portions
137 inclined-planes
14 contraposition walls
141 locating slots
2 terminals
21 fixed parts
211 interference convex blocks
22 elastic arms
221 bending parts
The inflection point 221a
222 contact portions
223 butting sections
224 springing parts
23 tail portions
231 welding surfaces
232 soldered balls
3 circuit boards
D abutting direction
Specific embodiment
Before the present invention is described in detail, it shall be noted that in the following description content, similar element is with identicalNumber indicate.
Refering to fig. 1 to Fig. 3, an embodiment of electric connector combination of the present invention, comprising two same structures and to mutualThe electric connector 100 that group connects, the two electric connectors 100 are to be respectively welded in a circuit board 3.
Each electric connector 100 includes an insulation shell 1 and multiple terminals 2.The insulation shell 1 has multiple length arranged in parallelShape wall body 11, multiple docking grooves 12 and multiple terminal grooves 13 for being formed in these wall bodies 11 between these wall bodies 11.?In the present embodiment, contraposition wall 14 of the insulation shell 1 also with these parallel wall bodies 11 and positioned at the side of these wall bodies 11, this is rightAlso a docking groove 12 is formed between position wall 14 and the adjacent wall body 11, and the contraposition wall 14 is with multiple spaced apart and eachThe locating slot 141 that one abutting direction D of leisure extends, and it is multiple right respectively farthest away from being formed on the outside of the wall body 11 of the contraposition wall 14Answer the positioning rib 111 of these locating slots 141, with when the two electric connectors 100 are mutually connected with group by mutual locating slot 141With positioning rib 111 with respect to position.In addition, the wall body 11 formation between every two-phase adjacency pair access slot 12 is respectively communicated with the two docking grooves12 two rows of terminal grooves 13, and the wall body 11 for being formed with positioning rib 111 is only in a row in the side shape towards the contraposition wall 14Terminal groove 13.
Refering to Fig. 4 to Fig. 7, each terminal groove 13 has a first end 131 and a second end 132 in abutting direction D, andOne first recessed portion 133, one that the wall surface for defining the terminal groove 13 is formed with an adjacent first end 131 it is adjacent this secondSecond recessed portion 134 and a support convex between first recessed portion 133 and second recessed portion 134 at end 132135。
Separately cooperate again refering to Fig. 8, these terminals 2 are respectively arranged on these terminal grooves 13.Each terminal 2 has a fixed part21, an elastic arm 22 and a tail portion 23.The elastic arm 22 and the tail portion 23 are connected to the fixed part 21 in abutting direction DBoth ends.The fixed part 21 is located at the first recessed portion 133 of corresponding end pilot trench 13, and the tail portion 23 is close to the first of corresponding end pilot trench 13End 131.There is the bending part 221, one extended by the fixed part 21 bending to connect the bending part 221 and cross for the elastic arm 22The springing part 224 that the butting section 223, one of the support convex 135 connects the butting section 223 and extends toward 132 direction of second end,And the contact portion 222 that is connected to 224 end of springing part and is protruded towards adjacent docking groove 12, and the springing part 224 and shouldContact portion 222 can be towards 134 resilient movement of the second recessed portion.In the present embodiment, which has multiple past two sides convexInterference convex block 211 (see Fig. 5) out, and insulation shell 1 define each terminal groove 13 two relative walls be formed with corresponding accommodating thisThe interference groove portion 136 of a little interference convex blocks 211, these interference convex blocks 211 and the inner wall interference for interfering groove portion 136, so that terminal 2 is solidDue to insulation shell 1.In the present embodiment, the fixed part 21 of each terminal 2 is by being butted on corresponding first recessed portion 133, and elasticityBy being butted on corresponding support convex 135 at the adjacent bending part 221 of arm 22.The bending part 221 is increased by elastic arm 22It is capable of providing the higher elasticity of elastic arm 22, and increases durability, is not easy in the deformation state that long-time is in after contact tiredLabor deformation；And the bending part 221 of each terminal 2 forms two inflection point 221a, can in 22 stress of elastic arm elastic displacementWhen dispersive stress to drop stress concentration, and when elastic arm 22 is close to corresponding second recessed portion, 134 elastic displacement, butting section223 a part is resisted against in support convex 135, is provided another fulcrum when 2 flexible deformation of terminal, is capable of providing dockingReliable and stable positive contact force between terminal 2.The tail portion 23 of each terminal 2 is bent by 21 right angle of fixed part to be extended, andWelding surface 231 with a setting soldered ball 232.As shown in Fig. 8,12, the terminal 2 of each 11 two sides of wall body, or be located at eachTwo rows of terminals 2 of two sides in docking groove 12, wherein it is in upper and lower axle to 180 that the terminal 2 of a row, which is relative to the terminal 2 of another row,Degree rotation is oppositely arranged, and protrudes the contact portion 222 of two rows of terminals 2 both facing to docking groove 12, that is to say, that each terminal 2 canIt is of similar shape and constructs.Refering to Fig. 7, Fig. 9 and Figure 10, in the present embodiment, each wall for defining the terminal groove 13Face be also formed with one gradually inside contracted from first recessed portion 133 toward the first end 131 made of inclined-plane 137, to assist soldered ball 232Positioning.As shown in Figure 10, the inclined-plane 137 positioned at 13 bottom of terminal groove of 11 two sides of wall body tilts in a reverse direction, insulation shell11 bottom surface constitutes such as trapezoidal convex block shape between two terminal grooves 13.
Refering to fig. 1,2,11 and Figure 12, the two electric connectors 100 mutually with wall body 11 and docking groove 12 with respect to grafting, andIt is right with it that the contact portion 222 of the one-to-one two-terminal 2 for being in contact, and being connected to each other of terminal 2 of this two electric connector 100 is butted on respectivelyThe butting section 223 of connecting terminal 2 being located at support convex 135.As shown in figure 12, two positions that are in contact of the two-terminal 2 of dockingIt sets and both corresponds to each elastic arm 22 at support convex 135, and contact reliable and stable between the terminal 2 of docking can be provided justXiang Li thereby ensures that docking terminal 2 is able to maintain that and is steadily electrically connected.
Refering to fig. 13, it is another form of implementation of terminal 2, the dotted line of diagram is the imaginary line of vertical direction, each terminal 2Elastic arm 22 cross after the support convex 135 again it is micro- towards deviateing the 134 direction deviation of the second recessed portion and toward the second end 132Direction extends, and the elastic arm 22 of terminal 2 can be made to have biggish flexible deformation in docking, further improves the contact after dockingPositive force.
In conclusion the elastic arm 22 by each terminal 2 has bending part 221, it is higher that elastic arm 22 can not only be providedElasticity, increase durability, the deformation not easy to fatigue in deformation state of the long-time after contact, and can elastic arm 22 byPower and dispersive stress when elastic displacement, and when elastic arm 22 is close to corresponding second recessed portion, 134 elastic displacement, close to bendingIt is resisted against at portion 221 in support convex 135, the reliable and stable positive contact force being capable of providing between the terminal of docking.FurthermoreWhen two electric connectors 100 dock, it is connected to each other two-terminal 2 and forms two contact points, and two positions that are in contact both correspond to each bulletProperty arm 22 at support convex 135, and reliable and stable contact positive force between the terminal 2 of docking can be provided, thereby ensured thatDocking terminal 2, which is able to maintain that, to be steadily electrically connected.
However described above, only the embodiment of the present invention, it is all when cannot be limited the scope of implementation of the present invention with thisIt is all still to belong to of the invention special according to simple equivalent changes and modifications made by claims of the present invention and patent specification contentIn the range of benefit covers.